Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Jul. 08, 2019 |
Sep. 27, 2019 |
Sep. 28, 2018 |
Sep. 27, 2019 |
Sep. 28, 2018 |
Dec. 31, 2018 |
|
| Finite-Lived Intangible Assets [Line Items] | ||||||
| Goodwill | $ 260,872 | $ 260,872 | $ 233,619 | |||
| Intangible assets | 15,900 | 15,900 | $ 8,600 | |||
| Amortization of intangible assets | 800 | $ 600 | $ 2,103 | $ 1,468 | ||
| Cash received for intangible assets contract | 5,400 | |||||
| Remaining average life | 4 years | |||||
| Advantor | ||||||
| Finite-Lived Intangible Assets [Line Items] | ||||||
| Goodwill | $ 27,253 | |||||
| Intangible assets acquired | $ 8,300 | |||||
| Intangible assets | $ 1,100 | |||||
| Amortization of intangible assets | $ 400 | $ 400 | ||||
| Remaining average life | 4 years 8 months 12 days | |||||